The printer is rated at 12ppm and 10ppm for black and colour print in normal mode and at 35ppm and 28ppm in draft mode. With times of up to a mind-numbing 45s before printing starts, you aren’t going to see these speeds in the real world. We saw 7.1ppm for a 5-page black text document, rising to 9.0ppm for the 20-page one. In draft mode, the 5-page document gave exactly 10.0ppm.
Duplex print suffers from drying time pauses and we saw 3.8 sides per minute from the 10-page, 20-side document. The five-page colour text and graphics document gave a healthy 6.0ppm, though an A3 equivalent gave only 1.4ppm. A4 copy times were comparatively good at 1min 16s for a 5-page copy and 4mins 3s for a 10-page duplex copy.
Print quality is little different from other recent Brother machines. Black text is readable, but marred by fuzziness caused by ink feathering along the paper fibres. Draft text is light and uses fewer dots, giving characters a jagged and dot-matrix appearance. Colours are reasonably solid and colour backgrounds to black text are well registered.
A colour copy came through much paler than the original, suggesting the scanner is not good at distinguishing true shades. Again, it's usable, but nothing exciting. Photo prints show natural colours and smooth transitions, giving clear, though sometimes slightly dark, representation of original images.
In several recent Brother inkjets we’ve noticed paper mis-feeds and here again, feeding Brother’s BP71 glossy photo paper at A4 and 15 x 10 sizes, we had problems. The pick-up failed and we then had trouble cancelling the print job – the only option offered was to reload paper. We had to pull the plug to get the MFC-J6910DW to reset.
Brother’s new cartridges are well priced, giving a cost per ISO page of 2.1p for black and 6.0p for colour print, including 0.7p for paper. These are both considerably better than average for inkjet multifunctions and really call the lie to the commonly held belief that laser print costs are lower than ink-jet.
There are plenty of applications for which the extra page area of an A3 sheet can be helpful and the MFC-J6910DW handles this well, with three paper sources and duplex print and copy. Touchscreen control and wireless connection improve the ease of use of the machine, but it's the quality of plain paper print that lets it down. It lags behind what the other main players are achieving.